alkafi-3106Vol. 2, p. 476
دَعْوَةُ الْعَبْدِ سِرّاً دَعْوَةً وَاحِدَةً تَعْدِلُ سَبْعِينَ دَعْوَةً عَلَانِيَةً. - وَ فِي رِوَايَةٍ أُخْرَى دَعْوَةٌ تُخْفِيهَا أَفْضَلُ عِنْدَ اللَّهِ مِنْ سَبْعِينَ دَعْوَةً تُظْهِرُهَا[1].
“A servant’s praying and pleading before Allah for help, privately once, is equal to seventy such prayers in public.’ In another Hadith it is said: ‘A prayer that you (hide from people) is better before Allah than seventy prayers made in public.’”